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Table 1 Summary statistics for targeted words and phrases for 2427 firm 10-Ks filed in 2018-sorted by total counts

From: Management disclosure of risk factors and COVID-19

Word/phrase

Mean number of occurrences

Standard deviation

Total count across all filings

Maximum count in one 10-K filing

% of Filings with at least one occurrence

Pandemic

0.180

0.593

436

9

12.6

Epidemic

0.098

0.462

238

9

6.6

Health Concerns

0.058

0.308

140

6

4.4

Contagious Disease

0.026

0.211

64

3

1.9

Avian Flu

0.018

0.184

43

5

1.3

Infectious Disease

0.016

0.150

39

3

1.3

H1N1

0.014

0.135

35

2

1.2

Outbreak of Disease

0.011

0.133

27

3

0.87

SARS

0.009

0.107

22

3

0.82

Swine Flu

0.008

0.118

20

3

0.62

Ebola

0.005

0.078

13

2

0.49

MERS

0.004

0.130

9

6

0.12

Contagious Illness

0.003

0.076

8

3

0.25

Fear of Contagion

0.001

0.035

3

1

0.12

Influenza Virus

0.001

0.035

3

1

0.12

Localized Illnesses

0.001

0.041

2

2

0.04

Coronavirus

0

0

0

0

0

Infectious Outbreak

0

0

0

0

0

Sum of All Occurrences

0.454

1.268

1102

18

20.97